GSM Based Alphanumeric Scrolling Display System

In this paper explains how a reliable and an authentic wireless communication could be easily developed between a mobile phone and microcontroller using GSM technology. This technical paper explains \"GSM based alphanumeric scrolling display system\" which can be widely used for displaying notices in colleges, advertisement in stock market, and public place on digital notice board by sending messages in form of SMS through mobile. The hardware board contains PIC 16F877A microcontroller at the heart of the system. The microcontroller is interfaced with GSM modem via MAX232 level convertor.